1. Graduate student, Department of Criminal Justice, University of Illinois, 1401 S. Maybrook Dr. Maywood, IL 60153, US.
2. Coordinator for serology, Illinois Department of Law Enforcement, Bureau of Scientific Services, Training and Applications Laboratory, Joliet, IL, US.
3. Forensic scientist, Illinois Department of Law Enforcement, Bureau of Scientific Services, Maywood Forensic Science Laboratory, Maywood, IL, US.